K3B can't found a DVDRW

http://forums.opensuse.org –
I install Suse 11.2 two days ago, I always use ubuntu and don't have any problem. I can try Suse, but I have a big big problem.
K3B and Brasero, can't detect my DVDRW, only for read. when I have Ubuntu I use k3B, and all is OK, but now I can't burn...what's the problem??
Please help me.>:(
(Distributions)

I've been up all night trying to get a live cd of 12 to work. I've burned them to

CDRW
DVDRW
and DVDR

I've tried acquiring ubuntu and kubuntu from different sources. 12.04 and 12.10. I have a 10.04 live cd that my computer's been booting from w/o a problem. They seem to burn fine. I've used brasero, the default program in 10.04 and roxio in windows.